120 citations · 466 across the 23 of their papers we have counts for
7 papers · 2 filters
Meta- Symmetry in Asymmetric Directional Couplers
Chicheng Ma, Wiktor Walasik, Natalia M. Litchinitser
Despite the benefits that directional coupler based parity-time symmetric systems may offer to the field of integrated optics, the realization of such couplers relies on rather str…
Dynamics of large femtosecond filament arrays: possibilities, limitations, and trade-offs
Wiktor Walasik, Natalia M. Litchinitser
Stable propagation of large, multifilament arrays over long distances in air paves new ways for microwave-radiation manipulation. Although, the dynamics of a single or a few filame…
Necklace Beam Generation in Nonlinear Colloidal Engineered Media
Salih Z. Silahli, Wiktor Walasik, Natalia M. Litchinitser
Modulational instability is a phenomenon that reveals itself as the exponential growth of weak perturbations in the presence of an intense pump beam propagating in a nonlinear medi…
Nonlinear parity-time-symmetric transition in finite-size optical couplers
Wiktor Walasik, Chicheng Ma, Natalia M. Litchinitser
Parity-time-symmetric (-symmetric) optical waveguide couplers offer a great potential for future applications in integrated optics. Studies of nonlinear $\mathcal{PT}…
Phase transition in multimode nonlinear parity-time-symmetric waveguide couplers
Wiktor Walasik, Natalia M. Litchinitser
Parity-time-symmetric (-symmetric) optical waveguide couplers have become a key component for integrated optics. They offer new possibilities for fast, ultracompact,…
Plasmon-soliton waves in planar slot waveguides: II. Results for stationary waves and stability analysis
Wiktor Walasik, Gilles Renversez, Fangwei Ye
We describe the results of the two methods we developed to calculate the stationary nonlinear solutions in one-dimensional plasmonic slot waveguides made of a finite-thickness nonl…
Plasmon-soliton waves in planar slot waveguides: I. Modeling
Wiktor Walasik, Gilles Renversez
We present two complementary models to study stationary nonlinear solutions in one-dimensional plasmonic slot waveguides made of a finite-thickness nonlinear dielectric core surrou…